Powahhhhhh!!!!!

Kinda hard to answer this: I had a Z1000 (1197cc MTC, Custom Mr Turbo Kit) at 19 years old in the early 80's with around 180bhp on single piston brakes and a 120 back tyre and very skinny forks. There was a limit to how much the bike could handle - far less than it's standard 85bhp. Could it have done with traction control, oh no, it was silly and soooo much fun.

Guess that didn't answer what you were asking, it's early and I didn't fully understand your question

 

I rode a GPz 1260 with nitrous, a mate's bike. That had sufficient power but insufficient everything else. If it had traction control that would merely have delayed the inevitable. Thankfully the bike ate it's own innards before it killed anyone. The same mate then bought a Spondon framed GSXR turbo. That was much nicer to ride, but once it hit boost it just lost traction no matter what you did. If traction control were available at the time this would have been an epic bike to ride. Don't know the power figures for either bike I'm afraid.

 

I think you will find that there is no such thing as too much power.

 

As it was last night and there was vodka involved, you probably don't care too much about the answer now.
That answer is, "it's all in the tyres". They have to transmit the bike's power to the road. If your tyres are smeared in olive oil, then just about any horsepower will be too much for the bike to handle. If they are made out of chewing gum, you can have a lot more.

 

I think Pirelli use olive oil as a release agent when they make their tyres.